Method of making radiators



y 1933. J. F. MCINTIRE 1,909,781

METHOD OF MAKING RADIATORS Filed March 12, 1932 4 Sheets-Sheet 1 SYWQ/YM Ja e M6111 111 6 May 16, 1933. J. F. MCINTIRE METHOD OF MAKING RADIATORS Filed March 12, 1932 4 Sheets-Sheet 2 m om w:

- 909,781 J. F. MCINTIRE 1 METHOD OF MAKING RADIATORS May 16, l933.-

4 Sheets-Sheet 3 Filed March 12, 1932 Moi/" A S May 16, 1933. J. F. M ENTlRE 1,909,731,

METHOD OF MAKING RADIATORS Filed March 12, 1932 4 Sh'ets-Sheet 4 Gum/Mugs Patented May 16, 1933 UNITED STATES PATENT OFFICE JAMES F. MCI NTI RE, DETROIT, MICHIGAN, ASSIGNOR TO UNITED STATES RADIATOR CORPORATION, OF DETROIT, MICHIGAN, A CORPORATION OF' NEW YORK METHOD or MAKINGlRADIATQRS Application filed March 12, 1932. Serial No. 598,355.

This invention relates generally to the manufacture of radiators and consists of certain novel features of construction, combinations and arrangements of parts, that will be hereinafter more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a top plan view of the means embodying my invention for making the radiator.

Figure 2 is a fragmentary side elevation of the construction illustrated in Figure 1.

Figure 3 is a section on the line 3-3 of Figure 1. 7

Figure 4 is a section taken substantially on the line 4.4: of Figure 3.

Figure 5 is a perspective view of the radiator and showing parts broken away and iii section.

Figure 6 is a section on the line 6 6 of Figure 5.

Figure 7 is a detail perspective view of one of the header slabs.

Figure 8 is a detail perspective view of one of the intermediate slabs.

Figure 9 is a perspective view of the inner core.

Figure 10 is a sectional-view taken on the line 101O of Figure 3.

- Figure 11 is a sectional view taken on the line 1111 of Figure 3.. a

Figure 12 is a fragmentary elevation of a slightly modified core structure.

Figure 13 is a fragmentary plan view of the radiator.

Figure 14 is a detail perspective view of one of the end slabs.

Referring now to the drawings, A is a radiator embodying my invention having end walls 1 and 2 respectively, side walls 3 and 4 respectively extending between the outer edges of said end walls, headers 5 and 6 respectively upon the inner sides of the end Walls, a steam or water-way 7 extending between the side walls 3 and 4 in substantially parallel relation thereto and terminally connected to the headers 5 and 6, parallel fins 8 and 9 respectively projecting laterally from opposite sides of the water-way 7 and headers 5 and 6 and connected to the side walls 3 and 4,'and partitions 10 and 11 respectively be- I tween the fins 8 substantially midway between opposite sides of the water-way 7 and the side walls 3 and 4. As shown, the side walls 3 and 4 are thinner than the end walls 1 and 2 and have slots 13 and 14 respectively extending longitudinally thereof at points substantially'midway between their upper and lower edges. Likewise the partitions 10 and 11 are provided with slots 15 and 16 respectively in substantially horizontal alignment with the slots 13' and 14: in the side walls 3 and 4. The headers5 and 6 are substantially rectangular in shape and have threaded openings 17 and 18 respectively for the reception of suitable piping (not shown). The water-way 7 is centered relative to the side walls 3 and 4 and opens into the headers 5 and 6. Preferably the top and bottom walls '19 and 20 respectively of the water-way 7 are Y-shape in cross section while the opposite side walls 21 and 22 thereof are parallel and extend between the furcations of the Ys. The fins 8 and 9 respectively are relatively thin and are preferably closely spaced in parallel relation to the end walls 1 and 2.

In the present instance the radiator described above is formed by three dry sand cores B, C and D respectively. 'As shown, the core B is solid throughout and preferably comprises a pair of header portionsf24 and 25 respectively and an intermediate web portion 26. Preferably the header portions 2 1 and 25 are substantially rectangular in shape and have cylindrical prints 27 and 28 respectively projecting upwardly from their upper ends and horizontally from their outer faces. The Web 26 'isrelatively thin and merges into the inner walls of the headers at J the centers thereof. 7 The longitudinal edges 29 and 30 respectively of this web are substantially V-shape in cross section and are substantially flush with the upper and lower ends of the headers 24 and 25, while the sides 31. and 32 respectively of the web are parallel and merge into the sides of the Vs. Suitab le passages 32 are provided in the core B for the escape of the core gases. The cores 0 and D are complementary to each other and form a casing for the core B.

Preferably the cores C and D are sectional in construction and each comprises a pair of end slabs or sections 33, two series E and F respectively of header slabs or sections 34, and a series of intermediate slabs or sections 35. The end slabs 33 are provided in their inner faces at their inner upright edges with substantially rectangular recesses 36 corresponding in shape to the end walls 1 and 2 respectively of the radiator, have semicircular openings 37 in their inner edges opening into said recesses 36 and adapted to receive the prints 38. The header slabs 34 have parallel sides 40 and 41 respectively and are provided in the sides 40 thereof with recesses 42 corresponding in area to the fins 9.

Webs 40 corresponding in area to the cross sectional area of the slots 13 and 14 are pro- Vided'at the outer edges 43 of the recesses 42. In addition the slabs 34 are provided along the vouter edges 43 of the recesses 42 upon opposite sides of the webs 40 with slots or openings 44 and 44 corresponding in area to the cross sectional area ofthe side walls 3 and 4, and areprovided in their upright edges 45 with openings 46 that communicate with the recesses 36 and receive the header portions 24 and 25 respectively of the core The intermediate slabs have parallel sides'47 and 48 respectively and are provided in the sides 47 thereof with recesses 49 that correspond in area to the fins 8 webs 50 corresponding'in area to the cross section of the slots 13 and 14 are provided at the outer edges 51 of the recesses, while webs 52 corresponding in area to the cross section of the slots 15 and 16 project laterally from the with rearwardly curved edges 61.

bases of the recesses 49 in horizontal alignment with webs 50. In addition these slabs 35 are provided along the rear edges 51 of the recesses 49 at opposite sides of the webs with slots or openings 53 and 54 respectively corresponding in area to the cross sec.- tion of the sidewalls 3 and v4. The slabs 35 also have slots or openings 55 and 56 respectively extending from opposite ends of the ribs 52 and corresponding in area to the cross section of the partitions 10 and'11 and are provided in their inner upright edges 57 with openings 58 corresponding in shape to and adapted to receive the sides of the core B.

At this point it will be noted that the inner upright edges 45 of the slabs 34 are straight both above and below the openings 46 and the inner upright edges 57 of the slabs 35 below the openings 58 are straight like the edges 45 but are irregular above said openings 58. As shown, the slabs 35 are provided above the openings 58 with short straight upright edges 60 and are provided at the upper ends of these straight edges Preferably the straight edges 60 of certain of the slabs 35 are in. alignment with the straight edges 57, while the straight edges 60, of the remaining slabs 35 are offset inwardly relative to the straight edges 57 so that when the slabs 35 are arranged as illustrated in whereupon the core D and rack 71 are as a unit placed upon the assembled cores B and C and rack 70. Any suitable-means such as the separate clamps :73 may be used to clamp the racks 7 O and 71 together to retain the cores 33, 34 and 35 respectively in assembled position. lVhen the molten metal'is poured into the gate it will flow substantially uniformly upon opposite sides of thecore B to form the waterway, thence laterally outwardly in the recesses 46 and 49 to form the fins 8 and 9, thence to the openings 44,53, 54 and 56 respectively to form the side walls 3 and 4 and partitions 10 and 11. After flowing throughopposite ends of the gate 65 the metal will flow about the header portions 24 and 25 andprints 28 and 29 and will thereby form the headers 5 and 6 and fins 9.

Thus from the foregoing it will be apparent that I have provided an extremely simple and inexpensive method of manufacturing radiators. It is decidedly less involved than the usual molding processes wherein flasks and green sand are employed. In fact, my method avoids theusual-molding operations and eliminates entirely the use of metal flasks, the necessity of making green sand molds, the contact of molten metal with improperly conditioned green sand, and'the consequent sand tempering. togetherwith the loss of green sand. My method is performed in the core room and may bevery expeditiously carried out, especially as only three dry sand cores are used. in the formation of the radiator. The racks are preferably made of metal and 'may be provided with removable liners if desired. WVith my method the molten metal is fed first'around the core B to form the steam or water-way of the. radiator where the pressure when the radiator is in use is the greatest. Consequently my method insures a sound casting which will stand the required pressure. The formation of the fins is secondary and is accomplished after the preliminary casting aforesaid is formed. A de- .fect in the steam or water-way would be a defective casting but a defect in the fins or side wall structure is not so important. However, my jmethod providesfor uniformity of fiQW of: metal so that the linspaces 42and 49 in the cores are feeders to the side wall spaces 44, 53 and 54 respeetively'in the cores. As a result the side walls 3 and i are uniform in thickness. In this connection it will be noted that the slots or openings 13 and 14, 15 and 16 respectively in the side wallsand partitions facilitate the removal of core gas and avoid the use of green sand for that operation. c I

Should an extra long radiator be desired the same method described'herein would be employed except that I would use two center cores and 81 respectively constructed and arranged as illustrated 'in Figure 12. As shown, these cores are provided with overlapping end portions 82 and 83 respectively and have suitable passages 84 and 85 there in for the escape of core gas. Preferably these end portions have vertical cylindrical prints 86 and 87 through which the passages 84 and 85 also extend. WVhen formed the end portions 88 and 89 respectively of the radiator may be tapped and the metal tl'ierebetween may be readily removed so that the passageways 90 and 91 respectively therein will he in direct communication.

WVhile it is believed that from the foregoing description the nature and advantages of the invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and described and that such changes may be resorted to when desired as 'fall within the scope of what is claimed.

What I claim as my invention is:

1. A mold for forming a radiator having end and side walls, headers upon the end walls, a fiuidway extending between said headers, partitions upon opposite sides of said fiuidway, fins projecting laterallyfrom opposite sides of the fiuidway to said partitions, fins projecting laterally from the partitions to the side walls, and fins projecting laterally from the headers to said side walls, comprising a longitudinally extending dry sand core having a relatively thin elongated body for forming the fluidway and having enlargements at opposite ends thereof for forming the headers, and twocomplementary dry sand cores forming a casing for the first mentioned core, the complementary cores having sections in the form of slabs arranged side by side in rows, the end slabs of said rows having abutting upright inner edges and being provided in their inner faces at their inner upright edges with recesses into which metal may fiow to form the end walls of the radiator, the slabs next tothe end slabs in said rows having openings receiving the enlargements of the first mentioned core and having abutting upright inner edges above and below said openings, said last mentioned slabs having recesses into which molten metal may flow to form the last mentioned fins, the bases of the recesses just mentioned being provided at their outer upright edges with slots into which metal may flow to form portions of the side walls of the radiator, and theslabs intermediate the second mentioned slabs having openings receiving the intermediate webportion of the first mentioned core and having abutting upright inner edges below said openings, the third mentioned slabs having recessestherein into which metal may flow to form the first and second mentioned fins, the bases of the last mentioned recesses being provided at their outer'upright edges in alignment with the slots in the second mentioned slabs with slots into which metal may How to form other portions of the side walls of the radiator and provided wit-h slots into which metal may flow to form the partitions, the upright inner edges of the third mentioned slabs being alternately oliset above the openings therein relative to the abutting straight edges thereof below said openings and forming a staggered prong gate permitting molten metal poured there in to flow substantially uniformly over opposite sides of the web of the first mentioned core.

2. A mold for forming a radiator having side walls, headers between said side walls at opposite ends thereofla fiuidway extending between said headers, partitions upon opposite sides of said fluidway, fins pro jecting laterally from opposite sides of the fiuidway to said partitions, and fins projecting laterally from the partitions to the side walls, comprising a longitudinally extending dry sand core havinga relatively thin elongated body for forming the fluidway and having enlargements at opposite ends thereofvfor forming the headers, and two complementary dry sand cores forming a casing for the first mentioned core, the complementary cores having sections in the form of slabs arranged side by side in rows, said slabs having aligned slots into which metal may flow to form the side Walls of the radiator and having aligned slots into which metal may flow to form the partitions, the slabs at the ends of said rows having openings receiving the enlargements of the first mentioned core, and having abutting uprightinner edges above and below said openings, the slabs intermediate the slabs just mentioned having openings receiving the intermediate web portion of the first mentioned core and having abutting upright inner edges below said openings, said last mentioned slabs having recesses therein into which metal may flow to form the first and second mentioned fins, the upright inner edges'ot the last men- 6. A mold for forming a radiator having end and side walls, headers upon the end walls provided with fluid inlets and outlets, a fluidway extending between said headers, partitions upon opposite sides of said fluidway, fins projecting laterally from opposite sides of the fiuidway to said partitions, fins projecting laterally from the partitions to the side walls, and fins projecting laterally from the headers to said side walls, comprising a longitudinally extending dry sand core having a relatively thin elongated body for forming;

the fluidway and having enlargements at opposite ends thereof for forming the headers, said enlargements being provided with projections for forming the fluid inlets and outlets for the headers, and two complementary dry sand cores forming a casin g for the first mentioned 'core, the complementary cores having sections in the form of slabs arranged side by side in rows, the end slabs of said rows having abutting upright inner edges and being provided in their inner faces at their inner upright edges with recesses into which metal may flow to form the end walls of the radiator, said end slabs having openings receiving certain of said projections, the slabs next to the end slabs in said rows having o )enings receiving the enlargements of the first mentioned core and having abutting upright inner edges above and below said openings, certain of the second mentioned slabs having openings receiving the other of said projections, said second mentioned slabs also having recesses into which molten metal m ay flow to form the last mentioned fins, the slabs intermediate the second mentioned slabs having openings receiving the intermediate web portion of the first mentioned core and hav-' ing abutting upright mner edges below said openings, the third mentioned slabs having recesses therein into which metal may flow to form the first and second mentioned fins,

said second and third mentioned slabs having aligned slots therein into which metal may flow to form the side walls of the radiator, the third mentioned slabs having aligned slots there into which metal may flow to form the partitions, the upright edges of the third mentioned slabs being spaced apart above the openings therein and forming a gate for the reception of molten metal.

7. A mold for forming a radiator having end and side valls, headers upon the end Walls, a fluidway extending between said headers, partitions upon opposite sides of said fluidway, fins projecting laterally from opposite sides of the fluidway to said partitions, fins projecting laterally from the par titions to the side walls, and fins projecting laterally from the headers to said side walls, comprising a longitudinally extending dry sand core having a relatively thin elongated body for forming the fluidway and having enlargements at opposite ends thereof forforming the headers, and two complementary dry sand cores forming a casing for the first mentioned core, the complementary cores having sections inthe form of slabs arranged. side by side in rows, the endslabs of said rows having abutting upright inner edges and being provided in their inner faces at their inner upright edges with recesses into wh1ch metal may How to form the end walls of the radiator, the slabs next to the end slabs in said rows having openings receiving the slabs intermediate the second mentioned slabs having openings receiving the interme diate Web portion or the first mentioned core and having abutting upright inner edges below said openings, the third mentioned slabs having recesses therein into which metal may flow to form the first and second mentioned fins, the bases of the last mentioned recesses being provided at their outer upright edges in alignment with the slots in the second mentioned slabs with slots into which metal may flow to form other portions of the side Walls of the radiator and provided with slots into which metal may flow to form the partitions, the upright inner edges of the third mentioned slabs above the openings therein being spaced apart and forming a gate for the reception of molten metal. 7

8. A mold for forming a radiator having end and side walls, headers upon the end walls, a fiuidway extending between "said headers, and partitions upon opposite sides of said fluidway, comprising a longitudinally extending dry sand core having arelatively thin elongated body for forming the fluidway and having enlargements at opposite ends thereof for forming the headers, andtwo complementary dry sand cores forming a casing for the first mentioned core, the complementary cores having sections in the form of slabs arranged side by side in rows, theend slabs of said rows having abutting upright inner edges and being provided in their innerfaces at their inner upright edges with recesses into which metal may flow to form the end Walls of the radiator, the slabs next to the end slabs in said rows having openings receiving the enlargements of the first mentioned core and having abutting upright inner edges above and below said openings, the slabs intermediate the second mentioned slabs having openings receiving the ner edges below said openings, the second and third mentioned slabs having aligned slots therein into which metal may flow to form the side Walls of the radiator, the third mentioned slabs having aligned slots therein into Which metal may flow to form the partitions, the upright inner edges of the third mentioned slabs above the openings therein being spaced apart and forming a gate for the reception of molten metal- In testimony whereof I afiix my'sig'nature.

JAMES F. MOINTIRE. 

